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QUANTUM NXT DI HEATER OPERATION / MAINTENANCE MANUAL
In some cases, most or all air bubbles can be purged from the system
simply by increasing and decreasing the water flow a few times. The
increase in flow will push out most air bubbles. If flow alone will not
remove all the trapped air, simply tap on the area where the air bubbles
accumulate while flow is on. This will break up the air bubbles and allow
them to flow out of the heater.
4.2 SYSTEM ON
Activate the power to the system by rotating the “Main Breaker” handle to
ON. If the display on the control panel does not illuminate, ensure that
the EMERGENCY OFF button is in the operate position. Press the reset
button to engage control power.
4.3 HEATER MODULE POWER
In order to energize, the heater must be enabled and free of alarms.
4.4 PROCESS ALARMS
If a fault occurs, the main contactor will disengage, the associated alarm
will show on the Alarm Status Page, and an audible alarm will sound.
Pressing the RESET button will silence the audible alarm. If the RESET
button is pushed and there are no active faults, the heater will be in
standby and ready to turn on.
4.5 NON-FATAL ALARMS
The Quantum NXT has several non-fatal alarms that do not cause an
audio alarm or turn off the heater but does effect the operation of the
heater.
Pressure and Liquid level alarms delay for 10 seconds (editable on
configuration page) before the alarm is activated. While delaying, the
contactors will be disengaged removing power from the heating
elements.
There is a “Soft Temperature Limit” that is associated with the maximum
Process Value (PV) temperature (110°C). If the PV temperature becomes
greater than 105ºC, the power is reduced without alarming. This will
continue until the PV temperature goes below 105ºC at which time power
is restored to normal operation. No audio alarms will sound when this
happens. If the temperature continues to rise above 110°C an alarm will
sound (See section 3.5.b).
A warning will be displayed accompanied by a 1 second beep every 10
seconds when either the liquid level or pressure alarm is activated but not
yet reached the alarm delay or when the continuous high alarm is active.
Pressing the reset button will silence the alarm, however, if the fault is not
corrected, the alarm will return after the set time delay.